I've had my ZZ plant (Zamioculcas zamiifolia) for about eight months now, and I'm finally seeing new leaflets unfurling from the base

I've had my ZZ plant (Zamioculcas zamiifolia) for about eight months now, and I'm finally seeing new leaflets unfurling from the base. I keep it in bright indirect light near a north-facing window, and honestly I was worried I wasn't giving it enough—it just sat there for so long without much change. But I've read that they're slow growers, so I'm trying to be patient. Does anyone else find theirs takes forever to show progress, or am I just overthinking it?